Fire and water proof composition.



POSITIONS, QQAIING PL W 2 I ixamiaer.

*5 s UNITED STATES PATENT OFFICE.

GEORGE KELLY, OF HINSDALE, ILLINOIS. y. 1 FIRE AND WATER PROOF COMPOSITION.

Specification of Letters Patent. Patented March 24, 1908.

1907. Serial No. 890,685.

. Application filed August 29,

.T 0 all whom it may concern:

Be it known that I, GEORGE KELLY, a citizen of the United States, residing at Hinsdale, in the county of Dupage and State of 5 Illinois, have invented a new and useful Fire and Water Proof Composition, of which the following is a specification.

This invention relates to fire and water roof compositions that may be em loyed or a great variety of urposes, as ereinafter exemplified, and t e principal object is to provide a composition of the above character that is very inexpensive, and is th0roughly effective against both fire and water. he compound consists exclusively of liquid glass and a water proof material of the asp 1a tum type. The term bituminous sub stance 3S t lerefore been se 9C 6 3S 8. T08

eslgnation to include ltches, tar, resin, and the difi'erent grades of commercial asphaltum. Among these is probably preferred, and the following may be given as a specific example that has proven entirely successful.

id cgal tar, either crude or refined, 1g is a out twelve poun to t e ga lon is thoroughly mixed with li uid lass, preferabl at about fort de ees Ea'um, which also weigh about ten poundsto 3. the gallon. These .two ingredients in the proportions stated, are readily intermingled, ormmg a perfect chemical union without any sediment or separation.

Now it is well known thatm alone is a very inflammable substance, but that it has water-proof qualities. It is a comparatively inexpensive product and abundant. On the other hand, li is absolutely fire proof, but not water-proof. That is to say, 40 It is affected by moisture, and will dissolve in a damp place or in water. I have discovered, however, after a long series of experiments that by combining the two articles named inabout equal parts b weight and without any othrTmgrdi'fit's'wv atevr the composition is absolutely fire proof and water proof. On the other hand, if the proportions are varied to any great extent, the etficacy of the lesser ingredient is destroyed. For instance, a cardboard saturated with the composition in proper proportions has been subjected to an intense heat for an extended time without being materially affected, and a box constructed of straw-board and coated 55 with the composition was placed upon a sheet iron heated red hot and water wast Macks- J w materials, coal tar boiled therein for over an hour without afiecting the box or its coating, whereas another board treated with a composition containi a less amount of the liquid glass was consume immediately.

I am aware that many compositions have been proposed that employ among the numerous ingredients, tar and liquid glass, but in every case of which I am aware, the

proportions of these two are so small that they cannot have any appreciable eflect as is secured b my composition they are not properly be anced or there are other ingredients that negative their action and destroy their effect.

The mixing of the tar and liquid glass a pears to practically result in a new artic e or substance, inasmuch as there is a chemical union between the two. That is to say, the caustic in 'the liquid glass appears to neutralize the acids in the tar, and there is no separation after they have been united.

he mixture at all times remains read for use, and there is no necessity of me heat' or otherwise softening it. In practica ie material is preferably stored in barrels, and when drawn from said barrels, 1clandbe immediately applied to .the work in an a While the material may be em loved for a great many purposes, it is pecu 'arly useful as a cement in cold storage work. Heretofore there has been no practical method of securing the insulating material to the walls of cold storage buildings, refrigerator cars, and the like, except by nails, wiring, pe s,

and the like, which devices are not olfiy detrimental to the insulation but are conductors of heat. Portland cement and similar materials have Been tnedjbiit these are ex ensive, and it has been found that they deieteriously aflect the insulation. The present composition, however, is found entirel satisfactory for the purpose, and can be a o employed as a rotective coating over the outer surface of t e insulation. It may also be used as a covering or a surface coat for'switch boards, wires, tapes, and the like, and in fact in any place where a fire and water proof covering is desirable. When applied, it has very great adhesive ua-lities, and becomes exceedingly hard. It oreover, its adhesive ualities are due to the combination of the e ements, neither of which alone would answer the purpose. The tar evaporates and enters into the material, leaving no ting,

holding surface, and while silicate of soda or H uid glass has adhesive ualities, it will only 'h ld in a dry place. If it as to be put where there is dampness, the liquid glass then loses its stated ualities, and softens and disintegrates. n the other hand, in the mixture, the ingredients cooperate, so that one sustains the other, and the adhesive qualities are not affected, either by heat or dampness.

I have already given the proportions where the li uid glass is at forty degrees Baum, and t e tar at a certain wei ht. -It of course be understood that w ere the liquid glass or tar employed is of a different consistency, the amount must be changed, al though the actual body is not altered. For instance, if the liquid glass is of a lighter Weight than that set forth above, then more of it would be required, and the same holds true if the tar is thicker or of a heavier weight than that mentioned.

From the foregoing, it is thought that the construction, operation, and many advantages of the herein described invention will be a parent to those skilled in the art, without fiirther description, and it will be understood that various changes in the size, shape, proportion, and minor details of construction, may be resorted to without departing 4. A composition of the character set forth,

consisting exclusively of substantially equal parts of coal tar and liquid glass.

5. A composition of the character set forth, consisting of substantially e ual parts by weight of coal tar and liquid l being at substantially forty egrees Baum.

In testimony that I claim the foregoing as my own, I have hereto afhxed my signature in the presence of two witnesses.

GEORGE KELLY. Witnesses:

W. A. SHERMAN,

FRANK E. Hmscom.

ass, the latter 

